[fahy-soh-stig-meen, -min] /ˌfaɪ soʊˈstɪg min, -mɪn/
an alkaloid, C 1 5 H 2 1 N 3 O 2 , used in the treatment of Alzheimer’s disease to raise the level of the neurotransmitter acetylcholine and also as a miotic in glaucoma.
an alkaloid found in the Calabar bean used esp in eye drops to reduce pressure inside the eyeball. Formula: C15H21N3O2 Also called eserine
physostigmine phy·so·stig·mine (fī’sō-stĭg’mēn’) or phy·so·stig·min (-mĭn)
A crystalline alkaloid used in medicine as a miotic and cholinergic agent and to enhance memory in patients with Alzheimer’s disease. Also called eserine.
[fahy-sos-tuh-muh s] /faɪˈsɒs tə məs/ adjective, Ichthyology. 1. having the mouth and air bladder connected by an air duct. /faɪˈsɒstəməs/ adjective 1. (of fishes) having a duct connecting the air bladder to part of the alimentary canal Compare physoclistous
- Phytanic acid
phytanic acid phy·tan·ic acid (fī-tān’ĭk) n. An acid derived from phytol that inhibits the oxidation of palmitic acid and accumulates in the serum and tissues of patients with Refsum’s disease.
[fahy-teyt] /ˈfaɪ teɪt/ noun, Chemistry, Biochemistry. 1. a salt or ester of , occurring in plants, especially cereal grains, capable of forming insoluble complexes with calcium, zinc, iron, and other nutrients and interfering with their absorption by the body.
[fahy-tik, fit-ik] /ˈfaɪ tɪk, ˈfɪt ɪk/ noun, Chemistry. 1. a white to pale-yellow, water-soluble liquid, C 6 H 1 8 O 2 4 P 6 , found in cereal grains: used chiefly to chelate heavy metals during the manufacture of animal fats and vegetable oils and as a water-softening agent.